Needle-threader.



No. 633,080. Patented sept. 12, |899.

J. DABLING. NEEDLE THREADER.

l'Auulication filed Oct. l, 1898.)

(No Model.)

me nonms Farms co, Puoau'rno., wAsumorcn. n. c.

UNITED STATES PATENT .@irnren.,

JOHN DARLING, OF GALLOVFLATS, SCOTLAND, ASSIGNOR TO THE GEM NEEDLETHREADER COMPANY, LIMITED, OF GLASGOlV, SCOTLAND. v

NEEDLE-THREADER SPECIFICATION forming part of Letters Patent No.633,080, dated September 12,' 1899. y I

Application ilcd GtOlJelf li 1898.

Zo /LZZ whom, t may concern:

BeitknownthatLJoHNDARLINe,engi1ieer, a subject of the Queen of GreatBritain and Ireland,and a resident of Gallowlats,Ruther glen, in thecounty of Lanark, Scotland, have in vented certain new and usefulImprovements in Needle-Threaders, (for which I have obtained a patentinGreat Britain, No. (3,170, hearing date the 14th day of March, 1898,) ofwhich the following is a specification.

My invention relates to improvements in needle threaders especially`intended for threading sewing-machine needles.

In order that my invention may be fully understood, I will proceed todescribe it with reference to the accompanying drawings, in which-Figure 1 isa side elevation of my improved needle-threader. Fig. 2`is afront elevation of the same. Fig. 3 is also a front elevation showingthe irst stage of the threading operation. Fig. eis asimilar view insecond stage of thev threading operation and also showing an end view ofthe device in connection therewith. Fig. 5 is an enlarged View of thecase, showing the threaderv after having passedthrough the eye of theneedle and caught the thread. Fig. 6 is an enlarged fragmental viewshowing the needle-threader. Fig. 7 is adetail transverse sectionshowing the passage for the threader.

In carrying out myinvention I provide a holder 1, of any convenientshape and size, secured to the upper end of which there is a case 2,which may be in one piece with the holder or connected to it in anyconvenient manner. In this case 2 there is a cross-bar 3, to which thereis connected or in one piece with it and lying at right angles to it anarm 4, which is mounted on the outer end or" a small rod or stem 5,working in thecenterofthe holder and carried by a spiral spring 6, andto which also there is connected a small ball or kndb 18, whereby thethreader is operated. The cross-bar 3 slides at. oneend on a. swingingbent-wire spring rod or cam 11, one end, 11, of which is connected tothe side of the case 2, while the other end, 11b, is connected to thepivoted outer vend 1L of the case, so as to vibrate therewith. Towardthe inserial No. 692.425. no modem ner end of the case 2 there iscentered at 7 one end of a bent lever 8, the other or outer end having alip-piece Sto which there is fixed a little pivot-pin 9, by which thethreader 10 is connected therewith and is held in position. The threaderis supported on the lippiece, while the ends of the threader extendthrough the sides of the case. The lever 8 is connected to the votherend of the crossbar 3 by means of the link 12. On one side of the caseand forming part of the pivoted outer end of the case there is aprojecting sleeve piece or plate 13 so formed or shaped that it not onlyacts as a guide for the threader passing transversely therethrough, butthe ends form a round hole or recess 14, into which the needle 15 toibethreaded passes, as will be hereinafter more fully explained. On theouter end of the projecting sleeve piece or plate 13 there is atransverse slit or eut-out 1G, in which the thread 17 is placed.

13 is a longitudinal slot in the sleeve-piece 13, through which thethreader works to seize the thread.

The mode of threading the needle is as fol- Nlows: The thread 17 isplaced across the sleevepiece in line with the slit 1G, and the slidingrod 5, carrying the cross-bar 3, is pulled down by means of the littleball or knob 18 and this through the bend on the vibrating spring wireor cam 11 slightly moves the projecting piece 13. The point of theneedle 15 is then passed down through the hole or recess 14 in thesleeve-piece until it protrudes about onesiXth of an inch or so. Theball or knob is then released and the machine gradually drawn away fromthe needle, when by the action of the spring 6 the bar 3 is moved, andit being connected to the lever 8 by means of the link 12, which turnson its pivot, causes the threader 10 to move along until it passesthrough the eye of the needle and cornes -in front of the thread 17. Thecross-bar 3 still continues to move, when by the bend on the spring-wire11 the projecting piece 13 returns to its normal position and thethreader grips the thread. The cross-bar 3, still moving the lever 8 bythe action of the link 12, is slightly drawn back, and with it thethreader, andthe thread, when they return through theeye of the needle,and the needle becomes automatieally threaded. In releasing the threadthe knob or ball is simply pulled down, when it becomes disengaged.

Of Course it is to be understood that slight variations in detail ofconstruction of the maohine might be made without deviating from theprinciple of my invention.

Having thus described my invention, the following is what I claim as newtherein and desire to secure by Letters Patent:

A needle-threader comprising a holder, a case, a sliding rod having anarm carrying a cross-bar, the pivoted outer end of the ease having asleeve-piece formed with a longitudinal slot and with a transverse slit,a vibrat- J OI-IN DARLING.

Vitnesses:

JOHN LIDDLE, EDITH MARY EDMoNns'roNn.

